How to Crochet a Cozy Corrugated Hat: Easy Step-by-Step Pattern

Looking for a quick and stylish winter project? This corrugated crochet hat is the perfect blend of texture and warmth. Because it is worked sideways and uses super bulky yarn, it works up quickly, making it an ideal gift or a cozy addition to your own winter wardrobe. Best of all, this pattern is beginner-friendly!

Materials Needed

• Yarn: Super Bulky weight yarn (approximately 1 ball of 3.5 oz / 100g / 211 yards).
• Crochet Hook: Size U.S. K/10½ (6.5 mm) or the size needed to obtain the correct gauge.
• Additional Tools: Yarn needle for seaming and scissors.

Pattern Details

• Size: One size to fit Adult.
• Gauge: 11 stitches and 11 rows = 4″ [10 cm] in single crochet back loop only (scbl) pattern.
• Skill Level: Easy.

Abbreviations Used

• Ch: Chain(s)
• Sc: Single crochet
• Scbl: Single crochet in back loop only
• Sl st: Slip stitch
• St(s): Stitch(es)
• Rep: Repeat
• RS: Right side
• Tog: Together

Step-by-Step Instructions

Important Note: This hat is worked sideways, meaning you are crocheting the length of the hat rather than in a circle.

Foundation: Chain 42.

Row 1 (RS): Work 1 single crochet (sc) in the 2nd chain from the hook. Work 1 sc in each remaining chain across the row. Turn. (41 sc)

Row 2: Chain 1. Work 1 scbl in the first stitch and in each stitch until you reach the last stitch. Leave the last stitch unworked. Turn. (40 sts)

Row 3: Slip stitch (sl st) into the back loop only of the first stitch. Work 1 scbl in the next stitch and 1 scbl in each stitch until the end of the row. Turn. (39 sts)

Row 4: Chain 1. Work 1 scbl in the first stitch and in each stitch until you reach the last stitch. Leave the last stitch unworked. Turn. (38 sts)

Row 5: Slip stitch into the back loop only of the first stitch. Work 1 scbl in the next stitch and 1 scbl in each stitch until the end of the row. Turn. (37 sts)

Rows 6 through 9: Repeat the instructions for Row 4 and Row 5 twice more. (33 sts)

Row 10: Chain 1. Work 1 scbl in each stitch to the end of the row. Note: Ensure you work into the skipped stitches and slip stitches from previous rows. Turn. (41 sc)

Rows 11 through 13: Chain 1. Work 1 scbl in each stitch to the end of the row. Turn.

Repeating the Pattern: Now, repeat Rows 2 through 13 three more times.

Finishing the Hat

Once you have completed the repeats, follow these steps to assemble your hat:

• Closing the Top: Break the yarn, leaving a long tail. Thread the yarn through the side of the stitches at the top of the hat and pull tight (cinch) to close the opening.
• Seaming the Side: Using your yarn needle and the remaining tail, sew the foundation chain and the last row together to create the hat shape.
• Final Touch: Weave in any loose ends and give your hat a gentle block or steam if needed to set the corrugated texture